Tank roof



' A. A. KRAMER TANK ROOF Filed April 26, 1922 2 /NVNTo/e f7 reW/f/ Wma/t l By my 1 `A ITO/ENE i Panarea oa., a, las.

ANDREW A. RER, 0F KANSAS CITY, SSOURI.

'ranal roer.

To all whom t may concern:

Be it known that I, ANDREW A. KRAMER, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Tank Roofs;

. and I do declare the following to be a f ull, clear, and exact description of the invent1on such as will enable others skilled in the art to whichl it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to sheet metal tanks and particularly to the roofing members thereof.

The primary obje-ct of the invention is to provide a strong, durable roof which may be fastened to the side wall which is usually composed of metal sheets so as to prevent leakage of the joints as well as to properly sustain the roof when applied. The side walland roof plates may be constructed of sheet metal so associated with expansible oint packings that liability of leakage will e eliminated.

The novel feature of my invention will be understood by reference to the following description in connection with the accompanying` drawings, in whichig. 1 is a fragmentary elevational view of a metal tank constructed in accordance with my invention.

Fig. 2 is a sectional view through a pair of roof sheets, showing part of one of the wall sheets and a form of manhole different from that shown in Fig. 1. Fig. 3 is a fragmentary disassociated view of two of the roof sheets and a portion of one of the wall sheets and a packing block and strips.

Fig. 4 is a cross sectional view through two roof sheets, showing a packing block in place with one of the roof sheet strips and the side Wall strip in place, and l Fig. 5 is a perspective view of one of the roof segments showing the longitudinal edge flanges which provide the box and joint or girders for strengthening thel edges of the roof sheet segments.

The tank is preferably made circular, the wall comprising apl-urality of plates 1, the upper edges of which are bent outwardly, as at 2, to provide supportmgflanges.

The roof is shown as comprismg a pluralapplication med april ze, 1922. serial m5561570.

ity of segments 3, each of whichv is shown as consisting of a plate having its outer edge bent downwardly, as at 4, to provide a protecting edge or flange.A One side edge of each plate is provided with a box-shaped flange 5, consisting of the vertical web 6, the top web 7 and the edge web 8; the top web 7 having bolt openings 9 therein, by means of which the flange ma be fastened to the flange 2 and tothe ma ole frame 10.

The other end of each segment is provided with a box-shaped flange 11, the outer end of which is scarfed, as at 12; that is, the edge 12 is cut on a diagonal from a depending web 13 to the upstanding web 14 of the flange 11, there being a notch 15y for the reception of a bolt 16, which extends through the flange 2, through the circumferential packing strip 17 and through the packing block 18, through the top web 19 and through the opening 9 so as to receive the nut 20. The packing strip'l? may consist of expansible material, such as rubber or the like, which will lay'upon the flange 2 and extend entirely around the circumference of the tank.

Transversely of the packing strip 17 is the block 18, which fills the trough or groove 21 1n the box-shaped flange 11 and which is adapted when the flange 5 is forced down upon the web 19 to expand so vthat it will' .fill the space between the depending web 13 and the upstanding web 6, and on top of the web 19 is a radial strip 22, which also may cons1st of expansible material so as to pack the space between the web 19 and the web?. Atthe inner edges of the' segments are packmg blocks which fill trough-shaped members in the same way, the inner packlng blocks being designated 23 and these are `adapted to bear against the circular strips 24, resting on the outturned flanges 25 ofthe manhole frame 10, the whole being secured by the bolts 26. i

, The manhole frame may have a stack 27 bolted to it with a manhole opening 28, as shown in Fig. 1` orit may be provided with a cover plate 29, as shown in rig. 2.

When the parts are properly assembled and the nuts are screwed on the bolts, pressure will be applied to the blocks and to the Apacking' strips so that they will expand, the

llljt) so that iiahiiity ont leakage .through the joints Wiii he prevented.

The frame 10 connects ailof the inner ends of the segments .and acts as a central tying frame therefor, as Well as a manhoiel The hex-shaped ribs or joints are9 in effect7 girders which span the spaces between the 'inail l and the freine 10 so that a strong.y eieient roof may be provided.

'What ii claim end desire to secure by Yistening the wail flange, the packing strips5 I the blocks and the girders together.

A tank'roof comprising, in combination ,wzith a supporting sheit, expansibie pecking strips on the upper fece of the shelf, packing hiochs spaced apart and extending trene- 'Iferseiy across hut supported hy the pecking strips, segmental roof' sheets. having sort-shaped girders at their ends, overlap the pecking hlochs7 the intermediate jnortions of the segments resting upon the pecking' strips, the hex-shaped girders heing nested. one over the other, packing strips between the nested girders, and means for fastening the wail ange, the packing strips, the blocks and the girders together, the last named means being adapted to exert pressure on the blocks whereby they will expend Within the girders to snugly hug the Walls to prevent leakage at the .goints 3.-A tank root comprising, in combination with ssupporting sheh, a packing strip n Meneer resting upon the sheii, pinraiity of roei sheet segments resting upon the strips and having box-shaped 'rders et thein` side edges, the box-shepe of ment being'nested over the other, expansihie packing hiocks resting upon the strips and Within the inner girden end lmeens. tor clamping the girders one 'to exert pressure on the r hioehs Wiii he expanded to between the girders.

4. A tenir roof comprising., in combination with a supporting sheife si pac-hing stripy resting upon the sheii3 s pinreiity et roei' sheet segments resting upon the strips and having hex-shaped gird rs et their side edges, the hoX-"haped f" ders' of one seg- 'nient heing nested over t then expe packing hioeks resting Within the inner girder., nenne for e?. e the girders one upon the et er to exert L ressure on the hiocks whereby the blocks' mit he expanded to peck the jcints hetvveen the girders, and rsdiai packing strips arranged between the inner and out-er girders. .im

5. A tank roof comprising, in cornhin tion with s supporting she'iif, end center einf her having a iaterai :Hangs at its iower edge9 pecking strips on the streit and :tiengeg iediai roei sheets resting on the packing,

e strips and having upstarzdlng, honshs girders aiong' their slde edges, 'the of one sheet being nested Within gir of en adjacent si let, the inner ing scarred peeking s hei ends the inner pecking strips, end means i .he girders, the packing blocks. andv the shelf togethenv at one end of the roof sheet9 and the girders, the packing hiocks and the flange at the other end of the roof sheet.

in testimony whereof it ax my signature.

ANDREW n. nien. 

